Avasthi D K, Kumar Amit, Singhal Rahul, Tripathi Ambuj, Misra D S
Inter University Accelerator Centre, Aruna Asaf Ali Marg, P.B. 10502, New Delhi 110067, India.
J Nanosci Nanotechnol. 2010 Jun;10(6):3767-79. doi: 10.1166/jnn.2010.1979.
Ion beam irradiation of materials can cause defect creation as well as defect annealing depending on the ion beam parameters such as ion fluence and the energy loss of ions in materials. In present review, we report the behaviour of carbon nanotubes under exteme conditions such as laser irradiation and ion irradiation. The reorientation of the crystalline planes in confined single crystal nickel nanorods inside carbon nano tube, induced by heavy ion irradiation, is reported. Axial buckling of nickel nanorods as well as walls of carbon nano tubes in nickel encapsulated carbon nano tubes under swift heavy ion irradiation at high fluence is observed. At high fluence, amorphization of nickel nanorods inside carbon nanotubes is also observed. Axial buckling and amorphization under ion irradiation at high fluence are dependent on the number of walls in carbon nanotubes. High resolution transmission electron microscopy was used to investigate the reorientations, buckling and amorphization of metal filled nanotubes. Synthesis of carbon nanowires by ion irradiation of fullerene and their field emission properties with comparison to that of unirradiated and irradiated carbon nanotubes are reported. An international scenario with future prospects of ion beam studies in carbon nanotube is briefed.
根据离子束参数（如离子注量和离子在材料中的能量损失），对材料进行离子束辐照可导致缺陷产生以及缺陷退火。在本综述中，我们报告了碳纳米管在激光辐照和离子辐照等极端条件下的行为。报道了重离子辐照诱导碳纳米管内受限单晶镍纳米棒中晶面的重新取向。观察到在高通量快速重离子辐照下，镍封装碳纳米管中镍纳米棒以及碳纳米管管壁的轴向屈曲。在高通量下，还观察到碳纳米管内镍纳米棒的非晶化。高通量离子辐照下的轴向屈曲和非晶化取决于碳纳米管的管壁数量。利用高分辨率透射电子显微镜研究了金属填充纳米管的重新取向、屈曲和非晶化。报道了通过对富勒烯进行离子辐照合成碳纳米线及其场发射特性，并与未辐照和辐照的碳纳米管进行了比较。简要介绍了碳纳米管离子束研究的国际现状和未来前景。
